1795. Irvine, William, 1741-1804. Photostats of original manuscript map done approximately 1795 located in the Pennsylvania State Archives.; Part of "RG - 17 6/2"; Includes legend.;...
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1795. Irvine, William, 1741-1804. Photostats of original manuscript map done approximately 1795 located in the Pennsylvania State Archives.; Includes legend.; Relief shown by shadin...